About Mauri S. Pelto . This method is applied to South Cascade Glacier, Washington, U.S.A., as an example. Dr. Pelto has been a professor of environmental science at Nichols and the director of the North Cascades Glacier Climate Project for 35 years. A glacier has no memory of the past year when it comes to mass balance, unlike say the extent of sea ice, it is more like the extent of snowcover. Miller, C.D. The computed cumulative mass balance from 1970 to 1997 would have been 16% too negative if the 1970 map had not been updated. The average thickness of South Cascade Glacier was found to be 83 meters in 1965, based on flow velocity and balance measurements. Regional variation in glacier mass balance is due to variation in geo-graphic characteristics such as aspect, elevation and location with respect to prevailing winds. Ground Penetrating Radar. Resources. Pelto, M.S. Noté /5. Arctic and Alpine Research 1, 49-66. The glacier of interest here is South Cascade Glacier located on the crest of the North Cascade Range of Washington. The Scientific Monthly, 81, 57-64. These records extend from 1984â2005 and represent the only set of records documenting the mass balance changes of an entire glacier clad range. South Cascade Sperry Wolverine. Posted by Mauri Pelto. The second hypothesis is that change in mass of South Cascade Glacier is representative of change in mass of all North Cascade glaciers. Water, Ice, and Meteorological Measurements at South Cascade Glacier, Washington, Balance Years 2004 and 2005. Gulkana Glacier. A comparison of glacier mass balance by glaciological, hydrological and mapping methods, South Cascade Glacier, Washington Wendell V. Tangborn, Robert M. Krimmel and Mark F. Meier Abstract. South Cascade Glacier White Chuck Glacier Daniels Glacier Foss Glacier Boulder Glacier Big Four Glacier. To test these hypotheses will require five years of detailed mass balance measurements on three glaciers in the North Cascades. Measurements began on South Cascade Glacier, WA in 1958, expanding to Gulkana and Wolverine glaciers, AK in 1966, and later Sperry Glacier, MT in 2005. The North Cascade Glacier Climate Project measures the annual balance of 9 glaciers, more than any other program in North America. Long-term elevation change for South Cascade Glacier, WA Key Questions: What is the current state and fate of the Earthâs glaciers? North Cascade glacier mass balance program. North Cascade Glacier Mass Balance 2010 . South Cascade Glacier, located just outside NOCA, has been monitored by the U.S.G.S. Geografiska Annaler, 81A, 653-658. The summation of the net balance values for the 1958â85 period is â10.0 meters water equivalent. Measurements began on South Cascade Glacier, WA in 1958, expanding to Gulkana and Wolverine glaciers, AK in 1966, and later Sperry Glacier, MT in 2005. Three different methods of determining glacier mass balance were compared on South Cascade Glacier during the period 20 June to 10 September 1970. Mass Balance: Benchmark Glaciers Other Glaciers. Retrouvez Modeled and Measured Glacier Change and Related Glaciological, Hydrological, and Meteorological Conditions at South Cascade Glacier, Washington, Balance and Water Years 2006 and 2007 et des millions de livres en stock sur Amazon.fr. South Cascade Glacier is a temperate mountain glacier located in the Cascade Mountains, Washington. The mass balance of South Cascade Glacier has been calculated by means of snow accumulation and ice ablation measurements since 1958. Temperature sensitivity is also highest during the summer for a glacier â¦ Since the late 1950s, the USGS has maintained a long-term glacier mass-balance program at three North American glaciers. A simple model uses daily observations of precipitation and temperature at a nearby weather station to estimate glacier-average seasonal mass-balance components at South Cascade Glacier, â¦ Sperry Glacier, Montana. South Cascade Glacier lost mass at an almost constant rate during the late 1950s to the late 1960s, then gained mass until 1976, and has been losing mass at a fairly constant and rapid rate since 1977. South Cascade Glacier, Washington, and Wolverine and Gulkana Glaciers, Alaska, 1967 Hydrologic Year By WENDELL V. TANGBORN, LAWRENCE R. MAYO, DAVID R. SCULLY, and ROBERT M. KRIMMEL ICE AND WATER BALANCES AT SELECTED GLACIERS IN THE UNITED STATES GEOLOGICAL SURVEY PROFESSIONAL PAPER 715-B A contribution to the International Hydrological Decade UNITED STATES â¦ Winter snow accumulation and summer snow and ice ablation were measured at South Cascade Glacier, Washington, to estimate glacier mass-balance quantities for balance years 2004 and 2005. The annual observations include mass balance, terminus behavior, glacier surface area and accumulation area ratio (AAR). Data. Achetez neuf ou d'occasion To arrive at optimal mass balance simulations, we investigate and quantify model uncertainty associated with selecting from a range of physical parameter values that are not commonly measured in glaciological mass balance field studies. The glacier is SE of Mt. South Cascade Glacier, Wash., to determine the winter mass balance and net mass balance for the 1993 balance year. Measurements began on South Cascade Glacier, WA in 1958, expanding to Gulkana and Wolverine glaciers, AK in 1966, and later Sperry Glacier, MT in 2005. Here we apply the model to estimate summer ablation on South Cascade Glacier, Washington, for the 2004 and 2005 mass balance seasons. The significant findings of this study are: 1. Achetez neuf ou d'occasion - Full mass balance plot and other info. Mass Balance Factsheet for the South Cascade Glacier, Cascade Mountains. Gulkana Glacier, Alaska. Lemon Creek, Alaska. Mass balance and volume of South Cascade Glacier, Washington. By William R. Bidlake, Edward G. Josberger, and Mark E. Savoca. to simulate glacier mass balance under meteorological and climatological forcing. It takes about 2.5 - 3 hours to drive to the nearest trailhead from Seattle. Abstract. Annual mass balance (Ba) measurements have been continued on the 8 original glaciers that still exist. Since the late 1950s, the USGS has maintained a long-term glacier mass-balance program at three North American glaciers. Wolverine Glacier and South Cascade Glacier are the other two monitoring sites. Measurements began on South Cascade Glacier, WA in 1958, expanding to Gulkana and Wolverine glaciers, AK in 1966, and later Sperry Glacier, MT in 2005. Other Study Locations: Black Rapids Glacier, Alaska Columbia Glacier, Alaska Hubbard Glacier, Alaska. Since the late 1950s, the USGS has maintained a long-term glacier mass-balance program at three North American glaciers. South Cascade Glacier, Washington. Welcome. South Cascade Glacier is located below Sentinel Peak in the Cascade Mountains of Washington. The North Cascade Glacier Climate Project (NCGCP) was founded in 1983 to monitor 10 glaciers throughout the range and identify their response to climate change. The balance trend for the higher altitude Thunder Creek glaciers shows a major change occurring about 1944, from generally negative balances between 1920-44 to a gain in glacier mass between 1945-65; 2. This glacier has been classified as one of the âreference glaciersâ by the World Glacier Monitoring Service because it has received continuous long-term observations dating back to the year 1952/53. The balance history of South Cascade Glacier for the period 1928-57 was estimated on the basis of this statistical relationship. Mass Balance, Runoff and Surge Calculation Here we apply the model to estimate summer ablation on South Cascade Glacier, Washington, for the 2004 and 2005 mass balance seasons. Wolverine Glacier, Alaska. Noté /5. Ground Penetrating Radar. Resources. benchmark glacier (South Cascade Glacier) in the lower 48 United States with ongoing measurements. The forecast rules provide a correct assessment in 41 of the 46 years for South Cascade Glacier and 20 of 23 years for NCGCP glaciers. How are mass loss rates evolving over time? Mass balance monitoring includes direct field measurements of accumulation and melt to estimate the volume gained and lost on a seasonal and water-year basis. Chronology of neoglacial moraines in the Dome Peak Area, North Cascade Range, Washington. Since 1966 when the USGS began collecting annual mass balance data, the mass of Gulkana Glacier has been decreasing by 0.4 meters per year on average. Since the late 1950s, the USGS has maintained a long-term glacier mass-balance program at three North American glaciers. What is long-term (30-60 year), decadal, annual, and seasonal mass balance of all glaciers in the Western U.S. and High-mountain Asia? 1993. Retrouvez Water, Ice, and Meteorological Measurements at South Cascade Glacier, Washington, Balance Years 2004 and 2005: Usgs Scientific Investigations Report 2 et des millions de livres en stock sur Amazon.fr. Measurements began on South Cascade Glacier, WA in 1958, expanding to Gulkana and Wolverine glaciers, AK in 1966, and later Sperry Glacier, MT in 2005. Glacier Mass Balance The purpose of this exercise is to illustrate features about glaciers mass balance and changes in glacier geometry. Previous Next. 1955. Reconstructing mass balance of South Cascade Glacier using tree-ring records Kailey Marcinkowski A thesis submitted in partial fulfillment of the requirements for a degree of Master of Science University of Washington 2012 Committee: Gregory J. Ettl David L. Peterson Don McKenzie Andrew Fountain Program Authorized to Offer Degree: School of Environmental and Forest Sciences. The study monitors climate, glacial movement, glacial runoff, glacier mass-balance, and stream runoff. Mass Balance: Benchmark Glaciers Other Glaciers. This was emphasized by a comparison of glacier mass balance in the North Cascades from 2009 to 2010. Borehole depth measurements of the glacier made later approximately agree with this estimate. Long, W.A. South Cascade 1960â2005, a set of forecast rules for glacier mass balance were derived utilizing OctoberâApril Paciï¬c Decadal Oscillation and Multivariate El Nino Southern Os-cillation index values. 1971. Topographic maps of the glacier were made from late summer vertical aerial photography in 1958, 1961, 1964, 1977, 1980 and 1985. South Cascade Glacier (1962) Wendell Tangborn (born 1927) is an American glaciologist specializing in glacier mass balance measurements since 1960, chiefly within the states of Washington and Alaska of the Pacific Northwest. Whatâs happening to our glaciers. South Cascade Glacier mass balance, 1935â2006 L.A.RASMUSSEN Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195-1310, USA E-mail: LAR@ess.washington.edu ABSTRACT. Additional measurements have been made on Lemon Creek and Taku glaciers, AK to compliment data collected by the No single glacier is representative of all others. The 1993 winter mass balance, averaged over the glacier, was 1.98 The North Cascade â¦ Since the late 1950s, the USGS has maintained a long-term glacier mass-balance program at three North American glaciers. MASS BALANCE, METEOROLOGICAL, AND RUNOFF MEASUREMENTS AT SOUTH CASCADE GLACIER, WASHINGTON, 1992 BALANCE YEAR Robert M. Krimmel ABSTRACT Values of winter snow accumulation and summer snow, firn, and ice ablation were Gulkana Glacier area change, 1957 - 2016. Noisy Creek, Silver Creek, and North Klawatti Glaciers have been monitored at NOCA since 1993 and a fourth glacier, Sandalee, since 1995. At the same time that South Cascade Glacier was gaining mass in the early 1970s, Wolverine Glacier was losing mass.
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